1111480 4C30 Distributor

[Heartbeat396]

I have a question on a distributor I found on a parts shelf that has been there since the late 70's or early 80's.  According to the shop it was taken out of a 1969 Z28 but it does not look like the correct font and date code.  I magnified the stampings and have posted the pictures.  The distributor body has the AA cast half way above the distributor gear along with 39 on the opposite side.  The advance is 532 CCW.  The tiny Delco Remy is stamped into the point base plate. The vacuum advance is 437 15.  It also has the chisle mark on the hold down ring to match to the intake manifold. Did GM make replacements with a current year like they did quadrajet carburetors?  If so did they chisle mark the timing mark as a general set up?  Greatly appreciate some insight as to the details on this distributor. 

[KurtS]

Yes, they serviced the distributors for years. If you bought one in 79, it would be stamped correctly for 69. And guys did just that....